A workshop for language teachers focusing on cooperative learning techniques is described. First, an example of the effectiveness of cooperative learning is demonstrated using a simple classroom game requiring interaction to solve a problem. The activity provides an opportunity for learners to practice questioning techniques in an authentic situation, builds a supportive and non-competitive learning environment, requires participants to use cognitive skills, and can be modified to achieve various objectives or teach a variety of topics. Considerations in making classroom cooperative learning activities effective are then outlined, including formation of roles and rules for cooperative groups, and shifting the teacher's role from instructor to facilitator. Forms are offered for individuals to assess their own contributions to the group effort, and for group members to rate each others' participation. It is concluded, based on the response of workshop participants, that the method fosters not only active learning but also a strong desire for cooperation with others. Contains 12 references. (MSE)